Personally I wouldn’t touch any of the fashion brands(exceptions being Cartier and Hermes but there way over £200), most of them have pretty cheap basic movements all your money is going into funding their marketing,
plus resale value is pennies(bare in mind there may come a time he might want to move it on).
Tissot and Seiko are both good calls, along with Orient.
If you can stretch the budget another £100 then some Hamiltons are available also.
Or my favourites would be over at Timefactors, either a Everest or Seafire,both English made watches with a great reputation.
http://www.timefactors.com/smiths.htm